Answer:
I can't answer 13, but 14 is silk, ancient China kept secret the way to make silk because (15) it gave them an advantage in trade (the silk road) because other countries would trade their goods for silk since china wouldn't tell them how to make it. Hope this helps!
To avoid a dictatorship. I would guess
<span>Roosevelt asserted American power with the Monroe Doctrine. It outlined the fact that the United States would not be controlled by European countries.</span>
Answered by Mimiwhatsup: The gloomy mood reflects the man's positive attitude.
Why by Mimiwhatsup: Jack London creates a lonely atmosphere
